Non-woven fabric hot air drying device

Abstract

The utility model relates to the technical field of non-woven fabric processing, in particular to a non-woven fabric hot air drying device which comprises a drying box, two partition plates are fixedly connected to the interior of the drying box, strip-shaped grooves are formed in the side walls of the two partition plates, connecting plates are fixedly connected to the two opposite inner side walls of the drying box, and the connecting plates are fixedly connected to the inner side walls of the drying box. Winding rollers are rotationally connected into the two connecting plates correspondingly, and three air inlets are formed in the top face and the bottom face of the drying box correspondingly. The two air supply units are arranged on the top face and the bottom face of the drying box correspondingly. According to the non-woven fabric drying device, the interior of the drying box is divided into three areas through the two partition plates, hot air supply in the upper direction and the lower direction is provided for each area, it is guaranteed that the non-woven fabric can be subjected to hot air in the two directions in the non-woven fabric unfolding and rolling processes, the heating uniformity is improved, and therefore the drying efficiency is improved. And through the cooperative arrangement of the air inlet, the door-shaped frame, the inserting groove and the baffle plate, the fibers are prevented from scattering, and the maintenance cost of the equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric processing technology, specifically a nonwoven fabric hot air drying device. Background Technology

[0002] Non-woven fabric, also known as non-woven cloth, needle-punched cotton, needle-punched non-woven fabric, etc., is a type of non-woven fabric. Non-woven fabric has many advantages, such as moisture resistance, breathability, flexibility, lightness, flame retardancy, non-toxicity and odorlessness, low price, and recyclability. In the processing of non-woven fabric, drying equipment is required for drying treatment. In the existing technology, hot air drying devices often have problems such as low drying efficiency and uneven drying.

[0003] When drying nonwoven fabrics, traditional hot air drying equipment typically places the nonwoven fabrics on a conveyor belt for transport. However, traditional drying devices often use a single hot air inlet. For thicker nonwoven fabrics, the hot air penetration is insufficient, preventing the hot air from reaching deep into the fabric and making it difficult for internal moisture to evaporate, thus affecting the uniformity of drying. Utility Model Content

[0004] The purpose of this invention is to provide a nonwoven fabric hot air drying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A nonwoven fabric hot air drying device, comprising:

[0007] The drying oven has two partition plates fixedly connected inside. The side walls of the two partition plates are provided with strip grooves. The two opposite inner side walls of the drying oven are fixedly connected with connecting plates. The two connecting plates are rotatably connected with winding rollers. The top and bottom surfaces of the drying oven are provided with three air inlets.

[0008] There are two air supply units, one on the top surface and one on the bottom surface of the drying oven. Each air supply unit includes three heating chambers. The side walls of each of the three heating chambers are connected to hot air pipes. The other end of each of the three hot air pipes is fixedly connected to a cover. The positions of the three covers correspond to the positions of the three air inlets. The three heating chambers are connected to each other through air supply pipes. Each heating chamber is equipped with an electric heating element.

[0009] Furthermore, the front side of the drying oven is hinged to have two doors.

[0010] Furthermore, two servo motors are fixedly connected to the rear side wall of the drying box, and the motor shafts of the two servo motors are respectively connected to the two winding rollers.

[0011] Furthermore, a fan is fixedly connected to the rear side wall of the drying oven, and two connecting pipes are connected to the side wall of the fan. The other ends of the two connecting pipes are respectively connected to two air supply pipes.

[0012] Furthermore, solenoid valves are installed on the outer walls of both connecting pipes.

[0013] Furthermore, the top and bottom surfaces of the drying oven are fixedly connected to door-shaped frames at positions corresponding to the air inlet, and the two side walls of the door-shaped frames are provided with insertion slots.

[0014] Furthermore, each of the six door-shaped frames is equipped with a baffle plate inside. The baffle plate includes a rectangular frame, the inner wall of which is equipped with a filter screen. Both side walls of the rectangular frame are fixedly connected with plug strips, which are inserted into plug slots. The top surface of the rectangular frame is fixedly connected with a handle.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The drying chamber is divided into three zones by two partitions, and each zone is supplied with hot air from both the top and bottom directions. This ensures that the nonwoven fabric is exposed to hot air from both directions during the unfolding and winding process, increasing the uniformity of heating and thus improving the drying efficiency.

[0017] 2. The coordinated design of the air inlet, door frame, insertion slot, and baffle plate prevents fiber scattering and reduces equipment maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a nonwoven fabric hot air drying device according to this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the drying oven of this utility model;

[0020] Figure 3 This is a schematic diagram of the rear view of this utility model;

[0021] Figure 4 This is a schematic diagram of the barrier plate structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the air supply mechanism in this utility model.

[0023] In the diagram: 100, drying oven; 1001, air inlet; 110, partition plate; 111, strip groove; 120, connecting plate; 130, take-up roller; 140, door frame; 141, insertion slot; 150, oven door; 160, servo motor; 200, air supply unit; 210, heating box; 211, electric heating element; 220, hot air duct; 230, cover; 240, air supply duct; 300, barrier plate; 310, rectangular frame; 320, filter screen; 330, insertion strip; 340, handle; 400, fan; 410, connecting pipe; 420, solenoid valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figure 1-5In this embodiment of the present invention, a non-woven fabric hot air drying device includes a drying box 100 and an air supply unit 200. Support legs are fixedly connected to the bottom surface of the drying box 100. Two partition plates 110 are fixedly connected inside the drying box 100, dividing the interior of the drying box 100 into three drying zones. Strip grooves 111 are provided on the side walls of both partition plates 110. Connecting plates 120 are fixedly connected to two opposite inner side walls of the drying box 100, and take-up rollers 130 are rotatably connected within each of the two connecting plates 120. Three air inlets 1001 are provided on the top and bottom surfaces of the drying box 100. Two air supply units 200 are provided, respectively located on the top and bottom surfaces of the drying box 100. Each air supply unit 200 includes three heating boxes 210, with hot air pipes 220 connected to the side walls of each of the three heating boxes 210. A cover is fixedly connected to the other end of each of the three hot air pipes 220. The three covers 230 are positioned corresponding to the positions of the three air inlets 1001. The outer walls of the three heating boxes 210 inside the air supply unit 200 on the top surface, as well as the bottom surfaces of the three covers 230, are fixedly connected to the top surface of the drying chamber 100. The bottom surfaces of the three heating boxes 210 inside the air supply unit 200 on the bottom surface, as well as the bottom surfaces of the three covers 230, are fixedly connected to the bottom surface of the drying chamber 100. The three heating boxes 210 are connected to each other through air supply pipes 240. The heating boxes 210 are equipped with electric heating tubes 211. The six covers 230 are respectively corresponding to the six air inlets 1001. The rear side wall of the drying chamber 100 is fixedly connected to two servo motors 160. The motor shafts of the two servo motors 160 are respectively connected to two take-up rollers 130. The front side of the drying chamber 100 is rotatably connected to two chamber doors 150 through hinges. The outer walls of the two chamber doors 150 are each equipped with handles 340.

[0027] Specifically, the damp roll of nonwoven fabric is installed on the take-up roller 130 on the left side inside the drying chamber 100. The end of the nonwoven fabric is pulled out and passed through two strip grooves 111 in sequence and wound onto the take-up roller 130 at the other end. The chamber door 150 is closed, and air is sent into the heating chamber 210 through the air supply pipe 240. The heating chamber 210 is started to heat the air. The hot air flows along the hot air pipe 220 and the cover 230, and finally blows into the drying chamber 100 from the air inlet 1001. Hot air is used to dry all three areas inside the drying chamber 100. The hot air blows into the drying chamber 100 from top to bottom. The nonwoven fabric in the middle area is suspended, so that the hot air dries both sides of the nonwoven fabric at the same time. At the same time, the servo motor 160 is started to rotate the take-up roller 130, so that the left take-up roller 130 unwinds and the right take-up roller 130 winds up, thereby improving the drying efficiency.

[0028] like Figure 3As shown, in this embodiment, a fan 400 is fixedly connected to the rear side wall of the drying box 100. Two connecting pipes 410 are connected to the side wall of the fan 400. The other ends of the two connecting pipes 410 are respectively connected to two air supply pipes 240. Solenoid valves 420 are installed on the outer walls of the two connecting pipes 410.

[0029] In this embodiment, the fan 400 is started, and the fan 400 delivers air to the upper and lower air supply units 200 through two connecting pipes 410 respectively, so that hot air acts on the non-woven fabric from both the upper and lower directions at the same time, ensuring uniform drying. In addition, the specific flow direction of the hot air can be selected by opening or closing any solenoid valve 420 to achieve precise control and optimize the drying effect.

[0030] like Figure 2 and Figure 4 As shown, in this embodiment, door frames 140 are fixedly connected to the top and bottom surfaces of the drying oven 100 at positions corresponding to the air inlet 1001. Insertion slots 141 are provided on both side walls of the door frames 140. A baffle plate 300 is provided inside each of the six door frames 140. The baffle plate 300 includes a rectangular frame 310. A filter screen 320 is provided on the inner wall of the rectangular frame 310. Insertion strips 330 are fixedly connected to both side walls of the rectangular frame 310. The insertion strips 330 are inserted into the insertion slots 141. A handle 340 is fixedly connected to the top surface of the rectangular frame 310.

[0031] In practice, baffles 300 are installed at each of the six air inlets 1001 inside the drying oven 100. The outer wall of the baffles 300 is in contact with the inner wall of the drying oven 100. When hot air is blown into the drying oven 100 from the air inlets 1001, the filter screen 320 is used to intercept the scattered fiber dust and reduce the amount of dust entering the heating box 210. When cleaning is required, the handle 340 is pulled outward to slide the baffles 300 out of the door frame 140, and the baffles 300 can be easily removed for cleaning.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nonwoven fabric hot air drying device, characterized in that, include: The drying oven (100) has two partition plates (110) fixedly connected inside. The side walls of the two partition plates (110) are provided with strip grooves (111). The two opposite inner side walls of the drying oven (100) are fixedly connected with connecting plates (120). The two connecting plates (120) are rotatably connected with winding rollers (130). The top and bottom surfaces of the drying oven (100) are provided with three air inlets (1001). There are two air supply units (200), which are respectively installed on the top and bottom surfaces of the drying box (100). The air supply unit (200) includes three heating boxes (210). The side walls of the three heating boxes (210) are connected to hot air pipes (220). The other end of the three hot air pipes (220) is fixedly connected to a cover (230). The positions of the three covers (230) correspond to the positions of the three air inlets (1001). The three heating boxes (210) are connected to each other through air supply pipes (240). Electric heating tubes (211) are installed inside the heating boxes (210).

2. The nonwoven fabric hot air drying device according to claim 1, characterized in that, The front of the drying oven (100) is hinged to have two doors (150).

3. The nonwoven fabric hot air drying device according to claim 1, characterized in that, Two servo motors (160) are fixedly connected to the rear side wall of the drying oven (100), and the motor shafts of the two servo motors (160) are respectively connected to the two take-up rollers (130).

4. The nonwoven fabric hot air drying device according to claim 1, characterized in that, A fan (400) is fixedly connected to the rear side wall of the drying oven (100). Two connecting pipes (410) are connected to the side wall of the fan (400), and the other ends of the two connecting pipes (410) are respectively connected to two air supply pipes (240).

5. The nonwoven fabric hot air drying device according to claim 4, characterized in that, Solenoid valves (420) are installed on the outer walls of both connecting pipes (410).

6. The nonwoven fabric hot air drying device according to claim 1, characterized in that, A door frame (140) is fixedly connected to the top and bottom surfaces of the drying oven (100) at the positions corresponding to the air inlet (1001), and the two side walls of the door frame (140) are provided with insertion slots (141).

7. The nonwoven fabric hot air drying device according to claim 6, characterized in that, The interior of each of the six door-shaped frames (140) is provided with a baffle plate (300). The baffle plate (300) includes a rectangular frame (310). The inner wall of the rectangular frame (310) is provided with a filter screen (320). The two side walls of the rectangular frame (310) are fixedly connected with plug strips (330). The plug strips (330) are plugged into the plug grooves (141). The top surface of the rectangular frame (310) is fixedly connected with a handle (340).

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